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Merge pull request #1 from hzuapps/master
实验包
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‎AndroidLabs/app/src/main/AndroidManifest.xml

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="edu.hzuapps.androidlabs">
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<application
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android:allowBackup="true"
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android:icon="@mipmap/ic_launcher"
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android:label="@string/app_name"
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android:supportsRtl="true"
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android:theme="@style/AppTheme">
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<activity android:name=".MainActivity">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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<activity
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android:name=".BackActivity"
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android:label="@string/title_activity_back">
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</activity>
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<activity
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android:name=".examples.ViewBasicActivity"
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android:label="@string/title_activity_view_basic">
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</activity>
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<activity
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android:name=".examples.ActivityBasicActivity"
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android:label="@string/title_activity_activity_basic">
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</activity>
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<activity
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android:name=".examples.ActivityBasic2Activity"
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android:label="@string/title_activity_activity_basic2">
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</activity>
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</application>
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</manifest>

‎AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/BackActivity.java

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package edu.hzuapps.androidlabs;
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import android.os.Bundle;
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import android.support.v7.app.AppCompatActivity;
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import android.util.Log;
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import android.view.Menu;
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import android.view.MenuItem;
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import edu.hzuapps.androidlabs.R;
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/**
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* 实现的默认返回按钮,所有作业可继续此类.
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*/
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public class BackActivity extends AppCompatActivity {
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_back);
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}
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@Override
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public boolean onCreateOptionsMenu(Menu menu) {
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getMenuInflater().inflate(R.menu.menu_subactivity, menu);
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return true;
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}
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@Override
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public boolean onOptionsItemSelected(MenuItem item) {
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int id = item.getItemId();
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if (id == R.id.action_back) {
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finish();
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return true;
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}
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return super.onOptionsItemSelected(item);
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}
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@Override
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protected void onStop() {
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super.onStop();
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Log.i(this.getClass().getSimpleName(), "停止!");
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}
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@Override
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protected void onDestroy() {
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super.onDestroy();
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Log.i(this.getClass().getSimpleName(), "回收!");
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}
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}

‎AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/MainActivity.java

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package edu.hzuapps.androidlabs;
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import android.app.Activity;
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import android.content.Intent;
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import android.support.v7.app.AppCompatActivity;
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import android.os.Bundle;
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import android.util.Log;
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import android.view.Menu;
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import android.view.MenuItem;
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import android.view.View;
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import android.widget.Button;
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import edu.hzuapps.androidlabs.examples.ActivityBasicActivity;
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public class MainActivity extends AppCompatActivity {
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int num; // 成员变量
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static int count; // 类的变量
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public static final String TAG = MainActivity.class.getSimpleName();
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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// 加载页面
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setContentView(R.layout.activity_main);
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// 显示按钮
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prepareExampleButton(R.id.button_activitybasic);
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}
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@Override
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public boolean onCreateOptionsMenu(Menu menu) {
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// Inflate the menu; this adds items to the action bar if it is present.
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getMenuInflater().inflate(R.menu.menu_main, menu);
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return true;
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}
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@Override
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public boolean onOptionsItemSelected(MenuItem item) {
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// Handle action bar item clicks here. The action bar will
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// automatically handle clicks on the Home/Up button, so long
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// as you specify a parent activity in AndroidManifest.xml.
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int id = item.getItemId();
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//noinspection SimplifiableIfStatement
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if (id == R.id.action_settings) {
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System.out.println("Yes");
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// Log.i(this.getClass().getSimpleName(), "View created!");
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Log.i("标题", "信息");
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return true;
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}
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return super.onOptionsItemSelected(item);
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}
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private void openActivity(Activity activity, Class activityClass) {
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Intent intent = new Intent(activity, activityClass);
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activity.startActivity(intent);
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}
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private void prepareExampleButton(final int buttonId) {
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final Activity thisActivity = this;
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Button button = (Button) findViewById(buttonId);
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if (button != null) {
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button.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View view) {
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openActivity(thisActivity, getActivity(buttonId));
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}
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});
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} else {
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Log.e(TAG, "按钮不存在: " + buttonId);
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}
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}
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private Class getActivity(int id) {
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if (R.id.button_activitybasic == id) {
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return ActivityBasicActivity.class;
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} else {
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return BackActivity.class;
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}
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}
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}

‎AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/examples/AbsoluteLayoutActivity.java

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package edu.hzuapps.androidlabs.examples;
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import android.os.Bundle;
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import android.support.v7.app.ActionBarActivity;
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import android.view.View;
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import android.widget.AbsoluteLayout;
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import edu.hzuapps.androidlabs.R;
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public class AbsoluteLayoutActivity extends ActionBarActivity {
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_absolute_layout);
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View root = findViewById(R.id.absolute_layout);
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AbsoluteLayout absoluteLayout = (AbsoluteLayout) root;
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}
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}

‎AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/examples/ActivityBasic2Activity.java

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package edu.hzuapps.androidlabs.examples;
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import android.app.Activity;
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import android.os.Bundle;
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import android.view.View;
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import android.widget.Button;
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import edu.hzuapps.androidlabs.BackActivity;
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import edu.hzuapps.androidlabs.R;
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public class ActivityBasic2Activity extends BackActivity {
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_activity_basic2);
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final Activity thisActivity = this;
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Button btnClose = (Button) findViewById(R.id.button_close);
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btnClose.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View view) {
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//thisActivity.finishActivity(2016);
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thisActivity.finish();
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}
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});
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}
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}

‎AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/examples/ActivityBasicActivity.java

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package edu.hzuapps.androidlabs.examples;
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import android.app.Activity;
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import android.content.Intent;
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import android.os.Bundle;
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import android.view.View;
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import android.widget.Button;
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import edu.hzuapps.androidlabs.BackActivity;
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import edu.hzuapps.androidlabs.R;
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public class ActivityBasicActivity extends BackActivity {
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_activity_basic);
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final Activity thisActivity = this;
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Button btnOpen = (Button) findViewById(R.id.button_open);
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btnOpen.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View view) {
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Intent intent = new Intent(thisActivity, ActivityBasic2Activity.class);
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thisActivity.startActivity(intent);
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//thisActivity.startActivityForResult(intent, 2016);
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}
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});
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}
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}

‎AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/examples/BroadcastReceiverActivity.java

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package edu.hzuapps.androidlabs.examples;
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import android.app.Activity;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.os.Bundle;
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import android.view.View;
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import android.widget.Button;
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import edu.hzuapps.androidlabs.R;
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import edu.hzuapps.androidlabs.BackActivity;
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public class BroadcastReceiverActivity extends BackActivity {
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public static final String TAG = BroadcastReceiverActivity.class.getSimpleName();
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public static final String MESSAGE = "edu.androidlabs.DETECTION";
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private BroadcastReceiverDemo mBroadcastReceiver;
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private IntentFilter mIntentFilter;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_broadcast_receiver);
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final Activity thisActivity = this;
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Button button = (Button) findViewById(R.id.button_send);
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button.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View view) {
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Intent intent = new Intent();
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thisActivity.sendBroadcast(intent);
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}
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});
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// 注册自定义广播
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IntentFilter intentFilter = new IntentFilter(MESSAGE);
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BroadcastReceiverDemo broadcastReceiver = new BroadcastReceiverDemo();
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this.registerReceiver(broadcastReceiver, intentFilter);
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}
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@Override
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protected void onResume() {
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super.onResume();
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// 注册系统时间广播
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mIntentFilter = new IntentFilter(MESSAGE);
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mBroadcastReceiver = new BroadcastReceiverDemo();
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this.registerReceiver(mBroadcastReceiver, mIntentFilter);
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}
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@Override
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protected void onPause() {
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super.onPause();
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this.unregisterReceiver(mBroadcastReceiver);
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}
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}

‎AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/examples/BroadcastReceiverDemo.java

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package edu.hzuapps.androidlabs.examples;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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import android.util.Log;
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public class BroadcastReceiverDemo extends BroadcastReceiver {
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public static final String TAG = BroadcastReceiverDemo.class.getSimpleName();
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public BroadcastReceiverDemo() {
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}
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@Override
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public void onReceive(Context context, Intent intent) {
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Log.i(TAG, "广播已接收!");
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}
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}

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